The trusty pressure washer is a gardener’s best friend, so it’s a good idea to do some research before buying. These machines are capable of blasting away debris, mud, and plant gunk like no other tool, and they’re also versatile enough to be used on a variety of surfaces including hard, cement and stone pavers, patios, verandas, and driveways, as well as softer materials such as timber and fibro.
Before buying a pressure washer it’s a good idea to work out what you’ll be using it for. If you’re planning to power wash your entire driveway and patio, you’ll need a more powerful engine than if you’re just planning on cleaning a few window sills. There are a range of different machines on the market to suit all needs, so it’s worth working out what you need before committing to a purchase.
Read on to learn more about the best pressure washer pumps.
Our Editor’s Best Pressure Washer Pumps Reviews
- 【Extend Service Life & High Performance】Replace this HORIZONTAL 3/4" shaft pump to reborn engine instead of buying a whole new power washer, and produce up to 3400 PSI at 2.5 GPM. Easy-to-install kit for quick start, stainless steel pistons for improved seal life and features a stainless-steel integrated unloader with easy-start system, ideal for washing walls, sidewalks, vehicles and more. *Not for 7/8" pumps, SRMW footprints, or frames with shrouds blocking the mount.
- 【Fit Guidance (Horizontal, 3/4" Shaft)】SAE standard bolt pattern for many gas pressure washers with horizontal engines, great replacement for ►HONDA GC190, GC160 (with 3/4" keyway shaft), GX160. ►SIMPSON: MSH3125 MS60753, MS60788, MS60850, MS60799,MS61043. ►Homelite 308418007, 309515003, 308418004, 308653078, 308653057, UT80522B, UT80953B, UT80522A, UT80953A. ►Karcher: G3050OH, K2400HH, G2400HH. ►mv 2.5g30 ►Troy-Bilt: 020241, 020241-1, 20242.
- 【TRV Protection & Adjustable Unloader】The TRV helps protect the pump from overheating in bypass. A double-seal system and upgraded piston/bearing design target longer service life Max 150 hours, longer than original power washer pump. With adjustable unloader allows you to increase or reduce the pressure to fit the engine's requirements better.
- 【Fit for Who】USA Standard Mounting design, this pump could fit most brand gas power washers come with the small gas engine from 180 to 225 cc (Equivale 6.5 to 7 hp engine). * Please match engine orientation, PSI/GPM, 3/4" shaft, and inlet/outlet orientation for a proper fit.
- 【Easy Start Easy Job】Pre-filled oil (no initial oil change required) and an Easy-Start structure provide easier pull-back starting. Use it for years with your pressure washer accessories. * Recommend draining out water inside pump and use pump protectant before long-time storage.
- AXIAL PUMP CLASSIC: The WOJET pressure washer pump works with the following engine models: ▶Honda GX160, GX200, GC160, GC190 ▶Briggs & Stratton 550EX, 575EX, 625EX, 675EXi, 725EXi, 850 Professional Series, 950 Series ▶Generac OHV 196cc, 161cc, 212cc ▶Subaru EA175V, EA190V ▶Kohler CH270, CH440, LH195, RH265, SH265, XT675 ▶Lifan 168F, 170F, LF200F ▶Loncin G200F, G160F, LC168F Not sure if it fits your model? Please send us your brand, model number, PSI, and GPM, and we’ll check for you!
- REVITALIZE YOUR PRESSURE WASHER: Give your old pressure washer a new lease of life with this reliable replacement pump. Designed for 3/4” shaft engines with 180 to 225 cc (6.5 to 7 HP), it fits well with many gas pressure washer models. With max pressure 3400 PSI and flow rate 2.5 GPM, this pressure washer pump is ideal for everyday tasks like car washes, driveway cleaning, fence maintenance, and other outdoor projects. It's a simple way to extend the life of your equipment
- EASILY ADJUSTABLE PRESSURE CONTROL: Our pump for power washer features an upgraded unloader that eliminates the need for a wrench to adjust pressure. Simply twist by hand - turn counterclockwise to reduce pressure for light tasks or clockwise to increase it for tougher jobs like cleaning driveways. This design lets you seamlessly switch between tasks, making it more convenient for washing cars, driveways, or more. The garden hose inlet and M22 outlet ensure easy connection to your existing setup
- SELF-PRIMING FOR GREATER FLEXIBILITY: Unlike most pumps, this model includes a unique self-priming function, giving you the freedom to draw water from a variety of sources. Whether it’s a bucket, pool, or tank, this power washer pump happily pulls water, making it ideal for areas without a direct faucet connection. Perfect for mobile tasks or supporting agricultural work, its versatility ensures you can tackle tough jobs in remote locations or expansive outdoor spaces
- REUSABLE PUMP: Made from strong die-cast aluminum, it resists rust and lasts a long time. A thermal relief valve prevents overheating by releasing hot water and letting in cooler water. It supports power washers up to 3400 PSI and 2.5 GPM. With detailed installation instructions and video, you can replace your old pump in just 10 minutes, making it a reliable upgrade for your pressure washer
- Extend the life of your pressure washer: Save money by replacing your pump instead of buying a whole new power washer; This easy-to-install kit is great for machines that can support 3300 PSI at 2.4 GPM to wash walls, fences, sidewalks, vehicles, and more
- Compatibility: SAE standard bolt pattern fits many gas pressure washers with horizontal engines. To ensure compatibility, be sure to match engine orientation, PSI, GPM, engine shaft diameter, and current pump inlet and outlet connection
- Standard Connections: This replacement pump features a garden hose inlet and threaded M22 connection high pressure hose outlet; Use it with many pressure washer hoses, including Simpson MorFlex models 40224, 40225, 40226 and Santoprene model 41182
- Skip the Oil Change: This pump features a maintenance-free crankcase so you never have to change the oil; It is manufactured from fully anodized die-cast aluminum for protection against corrosion; Use it for years with your pressure washer accessories
- Extended durability: A Thermal Relief Valve (TRV) protects the pump from overheating while in bypass mode; The TRV releases small amounts of hot water and intakes cooler water to prevent overheating and extend the life of the pump
- POWERFUL PRESSURE WASHER PUMP: With a max working pressure of 3400 PSI and flow rate of 2.5 GPM, fit most engines with 6.5-7 HP(180-225 cc), our pressure washing pump delivers exceptional performance, fits most vertical 7/8" shaft gas-powered pressure washers. (ONLY Fit 7/8'' Shaft Horizontal Engines)
- HIGH COMPATIBILITY: With a standard 7/8" shaft, our vertical pressure washer pump is designed to fit seamlessly into various gas-powered washers. Equipped with a 3/4" NH garden hose inlet and a threaded M22 high-pressure hose outlet, it is specifically crafted for compatibility with top brands like Simpson, Ryobi, Honda, ensuring a flawless replacement for your current pump
- HIGH QUALITY: Constructed with sturdy aluminum alloy pump body, this replacement one-piece pump ensures consistent and forceful water pressure, good wear resistance and prolong the life of oil/water seals. With a built-in thermal relief valve to prevent overheating, tackle tough cleaning tasks safety without worrying about potential damage caused by excessive heat
- EASY TO USE: Features a 3/4'' NH garden hose inlet and M22-14 male thread high pressure hose outlet, this powerful pump can be easily connected to a pressure washer hose. If it is not suitable for the connector of your PRESSURE WASHER HOSE, please purchase the adapter coupler connection separately
- PACKAGE INCLUDE: 1x Power Washer Replacement Pump, 1 x Detergent Hose, 3 x Bolts (M8 x 60), 2 x Shaft Key (4.78 x 4.78 x 35/42), 3 x M8 Locknuts, 3 x M8 Flat Pads. Only suitable for COLD WATER use
- 【COMPATIBILITY 】Replacement for ►Honda: GCV160, GCV190 ►Homelite: UT80432A, UT80432, UT80993, 308653006, 308653058, 308653009, 308653093, 308653052, 308653078. ►Simpson: ms60773, msv3024. ►Subaru: ea190v ►Ryobi: RY803001, RY802800, RY802900, RY802723, RY802700A. ►Husky: HU80911, HU80709A, HU80911A. ►Craftsman: 580752500, 580752580, 580.752052, 580.752191. ►Briggs & Stratton: 311553gs, 020441-0, 020442-0.
- 【Reborn Your Power Washer】YAMATIC Rear Inlet/Outlet Vertical Pressure Washer Pump 7/8" Shaft MAX 3000 PSI / 2.5 GPM / @3400 RPM, Save money by replacing your pump instead of buying a new pressure washer. Top performance at 2600-3000 PSI and fit most Rear Outlet 180-196cc at 6.5-7hp engine RYOBI, Honda, Briggs and Stratton, Subaru, PowerStroke, Craftsman, Simpson, Homelite, and Many other brands. (* NOT fit the pressure washer with an idle down feature.)
- 【Extended Durability & Adjustable Unloader】 The high-performance double seal system prevents leakage, and the upgraded technical surfacing piston and bearing provide 150 hours of running time, longer than the original power washer pump. And the thermal relief valve (TRV) protects the pump from overheating while in bypass mode. The adjustable unloader allows you to increase or reduce the pressure to meet the engine's requirements better.
- 【Maintenance-Free】This pump features a maintenance-free crankcase, so you never have to change the gasoline. This easy-to-install kit is excellent for power washers that can support 3000 PSI at 2.5 GPM to wash walls, fences, sidewalks, vehicles, and more.
- 【Easy Start】 Set up in 5-10 minutes! Built in for quick & straightforward cold starts to make the startup a breeze, no need to release pressure before starting the engine. Each kit includes a siphon tube with filter, mounting bolts, shaft key, and instruction booklet to get your machine back in action as quickly as possible.
- REPLACEMENT POWER WASHER PUMP: Replace your SIMPSON pressure washer pump with the OEM Technologies Axial Cam Power Washer Pump to restore cleaning power; Get up to 3400 PSI at 2.5 GPM; Fits horizontal engines with 3/4" shaft like the Honda GX190 or GX200
- EASY INSTALLATION: SAE standard bolt pattern fits many gas pressure washers with horizontal engines; To ensure compatibility, be sure to match engine orientation, PSI, GPM, engine shaft diameter, and current pump inlet and outlet connection
- BROAD COMPATIBILITY: This power washer pump replacement features a garden hose inlet and threaded M22 connection high pressure outlet; Fits many pressure washer attachments, including Simpson MorFlex hoses 40224, 40225, 40226 and Santoprene hose 41182
- DURABLE AND MAINTENANCE-FREE: This pump features a maintenance-free crankcase so you never have to change the oil; It is manufactured from fully anodized die-cast aluminum for protection against corrosion; Stainless steel pistons improve seal life
- THERMAL RELIEF: A Thermal Relief Valve (TRV) protects the pump from overheating while in bypass mode; The TRV releases small amounts of hot water and intakes cooler water to prevent overheating; Stainless steel integrated supports our easy-start system
- PREMIUM QUALITY: Improve OEM technology for an impressive 120-hour lifetime and manufactured from fully die-cast aluminum for excellent resistance against corrosion. Supports up to 3000 PSI - 2.5 GPM pressure washer. Compatible with Simpson, Homelite, Generac, Honda, Karcher, and more. (ONLY fits 3/4" shaft horizontal engine).
- MAINTENANCE FREE: This pump comes pre-filled with oil for a lifetime, so you never have to change the oil. Simply replace it and revive your pressure washer when your original pump stops working.
- EASY INSTALLATION: Includes a chemical hose with filter, mounting bolts, shaft key, and an instruction book to get your pressure washer back in action within 10 minutes. This replacement pump features a threaded M22 connection pressure washer hose outlet and a 3/4'' NH garden hose inlet. The standard bolt pattern fits most 3/4'' horizontal shaft gas-powered pressure washers.
- EXTENDED DURABILITY: A high-quality Thermal Relief Valve (TRV) protects the pump from overheating while in bypass mode. The TRV releases small amounts of hot water and intakes cold water to prevent overheating and extend the life of the pump.
- PROFESSIONAL TECHNICAL SUPPORT: Only fits 3/4" shaft horizontal pressure washer pumps. If you need pre-sales model matching consultation or replacement services, please feel free to message us, and we will provide you with professional technical support.
- Renew Your Gas Pressure Washer: Quality triplex pressure washer pump with big save. Designed for horizontal engine and relife your power washer with Max 4400 PSI and 4.2GPM, recommend working pressure 3400PSI@3400RPM for longer life. Service your residential and light commercial pressure washing for driveway, decks, fences, sidewalks, vehicles, and more
- OEM Quality Power Washer Pump: Fully anodized black crankcase with solid brass pump head can greatly improve the strength and improve the service life. The triplex design can make the pump run more smoothly, powerful and durable. Sight glass and advanced oil seal technology eliminates the need for a dipstick
- Adjustable Unloader: This pump come with unloader could adjust your pressure output with best perfomance with your engine and best cleaning efficient for your workshop. Also could reduce pressure when you need engine switch to idle model for low noise and relax for a while
- Easy Set Up: Pump flange comply with industry standard SAE mounting dimension, 1 inch shaft hole. Diagonal distance between holes is 6 1/2 inches. Distance between short side holes is 3 1/4 inches. Distance between long side holes is 4 1/2 inches. Comes with 3/4 inch garden hose inlet and 3/8 inch quick connect outlet for easy setup, renew your power washer. Fit most engine with 9-15HP or 270-340cc, test performance and pump replacement for Honda GX340 GX390 GX270, Briggs&Strattton, Simpson and so on
- Oil Pre-filled: The sight glass helps you check the oil level easily, you can know oil levels are low or if water has clouded the oil. We recommend you to change oil every 60 hours running time. Note: This pressure washer pump only for COLD WATER use
- [HIGH-QUALITY PUMP] Horizontal Power Washer Pump 3/4" Shaft MAX 3300 PSI / 2.5 GPM / @3400 RPM, Our pressure washer pumps replacement operation time is 150 hours, (50 hours longer than the market), so that you can save money for replace pressure washer accessories and time.Top performance at 2600-3300 PSI and fit most 180-225cc 6.0HP-8.0HP engine. Replacement for Simpson, Homelite, Honda, Karcher and more
- [EFFICIENT WORK] Come with 3 special test matched nozzle tips (0°/25°/soap) for best cleaning performance.If you need a higher pressure washing pump, it is equipped with a larger 3300 PSI / 2.5 GPM flow rate to complete the cleaning job more efficiently, allowing you to easily start cleaning in more scenarios (eg. garden, house, car, road etc). ⚠ Will not fit 7/8 inch shaft gas engine
- [SAVE WORRY] It is made of die cast aluminum with deep surface treatment to prevent rust, the 3/4" shaft pressure pump is maintenance-free crankcase, so there is no need for a lifetime of pre-filling gear oil, no oil change. Simply Replace it and Revive your Pressure Washer! We long for help you save more energy and time, this upgraded pressure pump will be your best choice.※►Diagonal distance between screw holes is 3 5/8''. ►Hole Distance to hole is 2 9/16''. ►Key width 3/16''. ►Depth 2 5/8''
- [Easy Start] Our horizontal pressure water pump replacement simplify the built-in, can quickly cold start, make work easy and pleasant start. There is no pressure relief before starting the engine. Easy set up in 5-10 minutes with Key. Please follow the instructions to help your machine renew working quickly. If you have any questions, please contact us
- [PARTS COMPATIBILITY] Compatible with AR: rmv 2.5g30; Honda: GC160, GC190, 309515003, 308418007; Simpson: MSH3125, MSH3125-S, MSH3224, MS60921, MS61043, MS61222, 90029, 90028, 520002, 520004, PS60841, PS60981, PS3425, 40224, 40225, 40226; Homelite: 308653057, 308418004, 308653078, UT80953A, UT80522B, UT80953B, UT80522A; Excell: PK18219, EXH2425, EXHA2425, XR2600, XC2600; Troy-Bilt: 20241, 020241-1, 20242, 020242-0-1, 020242-02, 020242-04, 01903; Karcher: K2400HH, G3050OH, MH5500H-1, M5500H-2, M5500H-3, G2800OH, G3000OH, G3025OH; Other: DXPW3025, DH3028, DXPW3425,UT80522, UT80953, PS80544
- Reborn Your Pressure Washer: This easy install kit is great for power washers that can support 3400 PSI at 2.5 GPM, suitable for power washers capable of 3400 PSI and 2.5 GPM. Perfect for a wide array of cleaning tasks including walls, fences, sidewalks, and vehicles. Opt for this pump replacement instead of purchasing a brand new pressure washer.
- Universal Compatibility: With a standard 7/8" shaft, our vertical pressure washer pump is designed to fit seamlessly into various gas-powered washers. Equipped with a 3/4" NH garden hose inlet and a threaded M22 high-pressure hose outlet, it is specifically crafted for compatibility with top brands like Simpson, Ryobi, Honda, ensuring a flawless replacement for your current pump.
- Easy Installation: Engineered for effortless and quick cold starts, our kit eliminates the need to release pressure before starting the engine. The package comes complete with 1 detergent hose, 3 bolts (M8 x 40), 1 shaft key, 3 D8 flat pads, 3 D8 spring washers, and an instruction manual. Set up in a few minutes!
- Maintenance-Free: Pre-filled with oil and equipped with a double seal system, our pump is designed to be ready for immediate use while avoiding oil and water leaks. Featuring a maintenance-free crankcase, there's no need for initial oil filling or periodic oil changes.
- High Quality: Our pressure washer pump is designed for longevity, enhancing plunger durability to improve resistance against wear and extending the lifespan of water and oil seals. The one-piece pump head ensures optimal sealing, while the metal shaft sleeve guards against oil leaks. Additionally, the thermal relief valve preserves pump integrity by preventing overheating when in bypass mode.
Best Pressure Washer Pumps Buying Guide
Before choosing the best pressure washer pump you should consider following options:
1. Water inlet valve: This is an important part of the pump that helps regulate the water flow into the pump. You can find two types of valves: one that is usually mounted on the water source itself, and another that is attached to the discharge hose.
Some pumps have both valves, while others have just one. If the pump has just one valve, it is important that you position it in a way that allows water to flow easily into the pump.
2. Discharge valve: The discharge valve also regulates water flow, but in the opposite direction. This valve is also available in two different models: one that is attached to the pump and another that is mounted on the discharge hose.
The two valves need to be in sync to ensure the right amount of water flows into and out of the pump. If the valves are not in sync, you may end up with an over- or under-pressurized pump.
3. Discharge head: The discharge head determines the maximum water pressure that the pump can produce. You can find two types of discharge heads: fixed and adjustable.
Fixed discharge heads are good for tasks that require a high water pressure, such as cleaning masonry and removing dirt from driveways.
Adjustable discharge heads are better for jobs that need a medium water pressure, such as cleaning windows and washing vehicles.
4. Maximum flow rate: This is the volume of water that the pump can discharge over a period of time. You can calculate the flow rate of a pump by multiplying the GPM (gallons per minute) by the discharge head in feet.
The maximum flow rate is important if you need to use the pump for applications that require a steady supply of water, such as cleaning carpets or washing vehicles.
5. Power source: The power source of a pump is determined by the energy that drives it. There are two types of sources: electric and gas-driven.
Electric-powered pumps use electricity from the local power grid, and gas-powered pumps use either a gas-powered engine or a battery-powered electric motor.
Gas-powered pumps are usually more expensive, but they are very convenient because you can use them anywhere.
6. Power requirement: This is the amount of energy that is required by the pump at any given moment. This can be calculated by multiplying the flow rate by the head in feet.
You can calculate the total power requirement by multiplying the flow rate by the head in feet and then multiplying the result by the GPM.
7. Maximum water depth: This is the maximum height that the pump can discharge water in relation to the water source. This is usually expressed in feet of submergence.
What else you should know about pressure washer pumps
1. What are the best pressure washer pumps for home use?
There is no definitive answer to this question as the best pressure washer pump for home use will vary depending on the specific needs and requirements of the user. However, some of the most popular pressure washer pumps for home use include electric pumps, gas-powered pumps, and diesel-powered pumps.
2. What are the best pressure washer pumps for commercial use?
The best pressure washer pumps for commercial use are those that are durable and can withstand heavy use. Some of the best brands include Karcher, General Pump, and Annovi Reverberi.
3. What are the best pressure washer pumps for heavy-duty use?
There is no definitive answer to this question because it depends on the specific needs of the user. However, some pressure washer pumps that are generally considered to be well-suited for heavy-duty use include the following:
1. General Pump TS2021
2. Annovi Reverberi RMV2.5G30
3. Cat Pumps CP3 plunger pump
4. Comet ZWD4040G
5. Interpump W923HD
4. What are the best pressure washer pumps for light-duty use?
Some of the best pressure washer pumps for light-duty use are the Annovi Reverberi AR Blue Clean, the Generac OneWash, and the Ryobi RY14122.
5. What are the best pressure washer pumps for portable use?
There is no definitive answer to this question as the best pressure washer pump for portable use will vary depending on the specific needs and preferences of the user. However, some of the factors that could be considered when choosing a pressure washer pump for portable use include the pump’s flow rate, pressure rating, and portability. Additionally, it is important to consider the compatibility of the pump with the pressure washer’s hose and nozzle in order to avoid any potential problems.
Conclusion
On the market, there are numerous best pressure washer pumps. Hopefully, the list of the top ten best pressure washer pumps will save you time researching and deciding on the best one for you.